Flush valve



R. KLANN FLUSH VALVE Aug. 2 1927.

Filed June 6. 1925 2 Sheets-Sheet 1 1,637,825 Aug. 2 1927. R. KLANN FLUSH VALVE Filed June 6. 1925 2 Sheets-Sheet 2 Patented Aug. 2, 1927.

A UNITED STATES..

RUDOLPH KLANN, F CHICAGO, ILLINOIS.

FLUSH vALvn.

Application led June 6,

My invention relates to iiush valves and has among its objects the production of a device of the kind described, which is simple, convenient, compact, eicient and satisfactory for use Wherever found applicable. A particular object of the invention is to provide a flush valve having improved means. for adjusting the valve with respect to the pressure in the system of which it :forms a` 1o part. Another object of the invention is to provide a Hush valve having improved means for re-illing a bowl or the like. A still further object of the invention is to provide a flush valve having improved means for reg- I ulating the quantity ofwater which` will pass through the valve each time it is actu-4 ated. Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in 2o the art from the disclosures herein given.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts:

Fig. 1 is a central longitudinal section through ailush valve embodying my invention, the valve being shown in connection with associated apparatus;

Figs. 2, 3 and llare sections taken on lines 2 2, 3-3 and 4 4, respectively, of Fig. 1; and

Fig. 5 is a fragmentary elevation of an apertured sleeve and parts carried thereby, the sleeve and said parts being shown in section in Fig; 1.

I prefer to disclose the present'invention as it is embodied in a flush valve of the type described in my U. S. Letters Patent No. 1,507,383 dated September 2, 1924. In the drawings the improved valve is designated generally bythe reference character 3 and is positioned betweenand operativelyr connected to a bowl 2 and a riser 1. The riser 1 connects the flush valve 3 to any suitable source of water under pressure, the riser being of the type usually employed in buildings and the like. The riser may, of course, be made of suitable proportions and may be connected to any desired number y,of valves 3. The valve 3 is connected to the bowl 2 by nipples 2 and 2" and an elbow 2c but respectively, of the sleeve 8 and form a 1925. Serial No. 35,450.

any other suitable means may be substituted therefor.

The means for connecting the riser 1 to the valve 3 preferably comprises a T-tting 1a 'forming part of the riser and communieating through a nipple 1l with a T-itting 3, the T-iitting aconstitutingthe casing for the valve 3. Screw-threaded into the upper end ofthe T-tting 3*l is a plug 3b and screw-threaded into the lower end of the T-ttmg 3 is a plu 3c into which is threaded the nipple 2a. rranged within the hollow interior of thev T-fitting 3 is a sleeve 8 which has one or more ports 9 of the desired size and shape intermediate its ends, these ports being preferably,v arranged adjacent the lower end of the sleeve. Clrcular plates 10 and 11, or the equivalent, are arranged transversely across the upper and lower ends,

chamber 8a within the sleeve. The ports 9 communicate with the chamber 8'* and the effective area of the ports may be controlled by means comprising an arcuate band 9 rigidly secured to a plate 9" mounted upon the sleeve 8 (Figs. 3 and 5). .The upper and lower ends of the plate 9b are slotted as at 9 and 9", respectively, the slot 9c acoornmodating a pin 9 projecting from the sleeve 8 and the slot 9d accommodating the shank of a screw 9t threaded into the sleeve 8. Obviously, the plate 9b and the arcuate band 9a may be raised or lowered to uncover or cover the ports 9. The screw 9 may be manipulated to secure the band 9a in any adjusted position with respect to the ports 9. The arcuate band 9* 1s preferably flexible and its inner surface is normally spaced from the outer surface of the sleeve 8 (Fig. 3). This'construction permits Water flowing under pressure from the nipple 1f to collapse the band as the water passes into the ports 9. When the band 9* is' so collapsed the effective area of the ports 9 is reduced and less water `will/pass through the valve for 100 each actuation thereof. In practice, the band 9a is adjusted with respect to the pressure obtaining in the riser 1 but it will be readily understood that if this pressure i'ncreases in valuewithin certain limits the 105 band 9a will automatically adjust itself with respect to the increase in pressure and prevent an undesirable amount of Water from passing through the valve.

- The plate' 10 has a central port there- 110 through provided with a valve seat 12 at its inner side, the valve seat 12 being adapted to cooperate with a valve 13 having a stem 14 projecting upwardly through the plug 3". The plate 11 has a central discharge opening therethrough provided with a valve seat 15 at its inner side. A valve 16 norn mally engages the valve seat 15 to close the discharge opening. The valve 16 is provided with a tubular valve stem 16* to which are rigidly secured two apertured disks 161 and 16, the disks being spaced from each other and being concentrically disposed with respect to the tubular valve seat 16a. A slight clearance is provided between the outer edges of the disks 16 and 16 and the inner surface of the sleeve 8 so that water entering through the inlet ports 9 may leak or iow upwardly past the disks to equalize the pressures obtaining within the chamber 8a. This insures that the valve 16 will normally scat upon the valve seat 15.

The upper end of the valve seat 16 is normally closed by a valve or plate 16d which is maintained in operative relation with respect to the valve seat by a plurality of screws 16 having hexagonal heads 16. As best shown in Fig. 1, the screws 163 prevent the plate 16d from moving transversely of the valve stem 16a but permit a limited movement longitudinally thereof. Slidably mounted within the valve stem 16u is a valve 17 arranged to cooperate with a valve seat 17a formed on the inner end of a tubular stem 17 threaded through the valve 16. Clearance is provided between the valve 17 and the inner surface of the valve stem 16* so that water may 'leak or iiow therebetween. A nut 17 threaded on the tubular stem 17" may be manipulated to lock the tubular stem in a plurality of adjusted positions with respect to the valve 16. It will be noted that the tubular valve stem 16L is provided with a plurality of ports 16s whereby water may vlow from the ports 9 into the interior of the valve stem 16 and thence through the tubu-` lar member 17".

Projecting into the plate 10 is a bore 10, which, at its inner end, communicates with the chamber 8", a valve seat 16h being formed at this point. A conical valve 10 formed upon a screw 10'l may be brought into a plurality of adjusted positions with respect to the valve seat. Obviously, water from the riser 1 may enter the chamber 8* by way of the bore 10a when the valve 10c is unseated.

' let leading to the bowl. Slidably mounted upon the duct 19 and disposed intermediate the disks 16" and 16c is a tube 19a which revents an undesirable amount of water rom flowing through the apertures which are rovided in the disks to accommodate the uct.

The upper end of the valve stem 14 is secured in a button 20 which is slidably mounted upon the upper end of a tubular easinfr 21 enclosing the valve stem and threade into the plug 3b. A rubber tube 24 is interposed between the button 20 and the lowermost end of the tubular casing 21. The rubber tube 24 serves as a gasket and also yieldingly holds the valve 13 in engagement with the valve seat 12. When the button 20 is depressed the valve 13 will be unseated, the rubber tube being compressed. mien the button is released the rubber tube will elongate to its normal length and retrleve the button and the valve 13 to their normal position. For ornamental purposes, I preferably provide a removable ca 25 at the upper end of the T-itting 3, whlch cap 25 encloses the plug 3b and the lower end of the tubular casing 21.

Assuming that the parts are in the positions wherein they are shown in Fig. 1 and that the riser 1 is connected to a suitable supply of water under pressure, it is obvious that the chamber 8a and the tubular valve stem 16a will be full of Water. As above explained, equalized pressures will obtain throughout the chamber 8a and within the valve stem 16a. lf the button 20 is then depressed the valve 13 will be unseated and water will flow from the chamber 8*IL into the space above the plate 10. This water may escape to the bow by way of the duct 19 and by way of the above described means connecting the valve 3 with the bowl. The pressures in the chamber 8a will then be unbalanced and the valve 16 together with the parts carried thereby will move upward to the chamber 8a. Practically simultaneouly, the valve 17 will move upwardly relative to the valve stem 16a and uncover the opening through the tubular stem 17", the plate 16d being urged against the hexagonal heads 16t of the screws 16e. Water will then flow through the ports 9, the lower end of the chamber 8, the discharge opening in the plate 11 and thence to the bowl 2. When the button 20 is released, the valve 13 moves into engagement with the valve seat 12. The water entering through the ports 9 then leaks or flows upwardly through the space between the inner surface of the sleeve 8 and the outer edges of the disks 16b and 16. This equalizes the pressure obtaining in the chamber 8a and permits the valve 16 to return to its seat 15. This restoration of nor mal conditions in the chamber 8a is also accompanied by a return of the plate 16d to its seat upon the tubular valve stem 16a. The water entering through the apertures 16g equalizes the pressures obtaining within the tubular stem 16a with respectJ to the pressures obtaining in the chamber 8a and per.- mits the valve 17 to return to its seat 17a. The arrangement is such that the valve 17 will remain unseated for a short interval of time after the valve 16 has engaged the valve seat 15. This permits a relatively smallquantity of water to flow through the tubular stem 17b to refill the bowl. The amount of water which passes through the tubular stem 17bafter the valve 16 has engaged the valvei seat 15 may be re lated by manipulating the tubular stem 1 l. Thus, if the tubular stem 17b is manipulated to project a greater distance into the tubular member 16a the length of travel of the valve 17 will be shortened and less water will be su plied to refill the bowl 2. Obviously, the tu'ular member 17b may be manipulated to lengthen the stroke of the valve 17 so as to increase the amount of Water supplied to refill the bowl 2.

The aforementioned screw 1()d may be manipulated to increase or decrease the amount of water supplied to the bowl during the flushing operation. Thus, if the screw is .manipulated to unseat the valve 10c from the valve seat 10b water may pass directly from the nipple 1" to the chamber 8 by way of the bore 10a. Then if the valve is actuated, normal conditions within the chamber 8 will be restored in less time than is the case when the valve 10c is seated. The

screw may be adjustedinto any desired position with respect to the valve seat 1Qb so that this return to normal conditions wlthin the chamber 8 will take place within a predetermined period of time and thus insure that the desired and proper amount of water will pass through the valve for each actuation thereof.

' Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. A device of the character described comrising a hollow member, a sleeve arranged 1n said hollow member, a closure member for each end of the sleeve having a port therethrough forming a valve seat, the sleeve having inlet ports adjacent the lower closure, a` manually operable valve controlling the upper closure port, a second valve for controlling the lower closure port, said second valve having a chamber formed therein provided with a discharge opening, and a third valve disposed I in saidy chamber for controlling said discharge opening.

2. A device of the character described comprising a hollow member, a sleeve arranged insaid hollow member, a closure member for each end of the sleeve having a port therethrough forming a valve seat, the sleeve having inlet ports adjacent the lower closure, a manually operable valve controlling the upper closure port, a second valve having a chamber formed therein and adapted to control the lower closure port, said second valve being operable within the sleeve and of less diameter than the sleeve to allow water entering the sleeve inlet ports to pass therearound and into the space between the valves, said chamber being provided with a discharge opening, and a third valve disposed in said chamber for controlling said discharge opening. f

3. A Hush valve comprising a chamber havin@ a discharge opening at one end thereof and having a second discharge opening at the other end, valves for controlling said discharge openings, ports communicating with said chamber, means connecting said ports with a supply of liquid under pressure, and a flexible band around said chamber and collapsible under fluid pressure for controlling the flow of liquid through said ports.

4. A Aflush valve comprising achamber having a discharge opening through each end, a manually operated valvecontrolling the passage through the discharge opening at one end, a pressure operated valve ,controlling the discharge through the opening at the other end of the chamber, ports communicating with said chamber, means for connecting said ports with a supply of liquid under pressure, and a flexible band around said chamber and collapsible under fluid pressure for controlling the flow of liquid through said ports. c 5. valve of the character described including a chamber having a discharge opening at each end, a manually actuated valve controlling the passage through one of said discharge openings, a pressure operated valve controlling the discharge through the other opening, a tubular valve stem carried by the pressure controlled valve, a valve .movable .in said stem, a tubular member carried by the pressure controlled valve and communieating with said tubular valve stem with the passage therethrough controlled by the movement of the l'loat valve` ports communicating with the chamber` means connecting the ports with a supply of liquid under pressure, and a flexible bandl around said chamber and collapsible under fluid pressure for controlling the flow of liquid through said ports.

In testin'ionv whereof, I have hereunto signed my name.

RUDOLPH KLANN. 

